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A. H. BROWN.

Churn.;

Patented Oct. 8, 1867.

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TO ALL WHOM IT MAY C-ONGERN:

Beit known that I, A. H. BROWN, of Springfield, in tho county of Windsor, and State of Vermont, have invented a new and useful Improvement in Ghurns; -and I do hereby declare that the following is a full, clear,

andexact description thereof,y which will enable others skilled in the art to make and use the same, reference bcing'h'rad to the accompanying drawings, forming a part of this specification.

This invention relates to a new and improved method of constructing churns, and the invention consists in the peculiar formation of the dasher and bottom portion of the churn-vessel, and also in the method in which the motion given by the gearing is changed from fast to slow, and hice versa, as will be hereinafter described.

-Figure 1 represents a vertical section of the churn through the line'z z of lig. 2.

`Figure 2 is a cros`ssection of the churn through the line y y of iig. 1. Y i

Figure 3 is a detached view of the gearing, showing themanner of its arrangement and operation.

Similar letters of reference indicate corresponding parts.

The box or body of the churn is markedA. The lower half of it forms a cylinder composed of segments with lint surfaces within the churn, forming obtuse angles a with eachother, as seen in the drawing. The upper half or portion of the box is formed of vertical parallel sides. Brepresents the top or cover of the churn, which has air-tubes through it, marked a. C represents the shaft of the churn. D D represent the arms in theshaft, to which the dashers are'attached. E represents the main dashers, which mayr be described as oblique longitudinal sections of a cylinder, and which, in their revolution, tit the cylindrical portion of thc box A, as seen in the drawing. On the shorter arms D there are dashers placed at an angle on the arms so as to throw the cream towards the centre or middle of the churn. The main dashers E are placed parallel with cach other on the arms, so that their action on thecream'has the same eiect. Attached to one of the arms at cachend of the churn (by small studs) there is a scraper, b, seen in fig. 1, which, as the dasher revolves, runs very near the ends or heads of the churn, thus preventing the cream from adhering to the end of the churn. Il represents the frame or lcgswhich support the churn. The segments and sides of the churn are secured to -the heads by -metallic bands or hoops, which pass `entirely around each end of the churn, thus preventing all danger of bursting open 'or cracking. The dashers are revolved by gearing, as seen in the drawing. G is an internal gear and driving or crank-wheel. H is a pinion-wheel, which is attached to the centre of 'the drivingwheel G. J is apinion-wheel, which is connectedwith thedasher-shaft. This pinion J is made to engage either witlr the main wheel G or'with the pinion H, so as to snit the motion which it is desired to give the dashcrs in thel process of churning. This change of motion is effected by using an eccentric thimble, marked e, on the pivot-f. The pivot f is attached to the frame of the churn, and the thimble e is slipped on to it. The main wheel revolves around thisthimble. The hole through thc'thimble is not through the centre, but on one sido Aoi""1he centre, as seen in the drawing. When it is placed on the pivot f, as s een in figs. 1 and 3, the main wheel i's drawn/up so that its cogs mesh with the pinion J. Now, if the thimble is turned around on the pivot a half of Vaf revolution, the main wheel will be thrown out of gear with J, and the small wheel H will be thrown into gear with J. The largcor main wheel gives the dashers a rapid motion, which is used until the butter comes." when the main wheel is thrown out of gear by reversing the thimble, as before stated, when a slow or moderate motion is given'by the two small wheels Vfor gathering the butter. The thimble e has a slot in its head or outer ond, and there is a'hole through the pivot, so that the thimble is held in place by-a pin, d, as seen in fig. 1. The pinion J is connected with the dasherlshaft by an arbor, marked g, which runs in a box in the frame,

marked r. The. inner end ofthe arbor gis-square, and enters a square socket in thc end of the dnsher-shaft and described; also the latch z' and button lc, as-and for the purpose set forth.

C, as seen in the drawing. This arrangement is for the purposeof allowing the (lacher-shaft to be rclnpvcd from the churn. To do this the varbor g is withdrawn, when the 'shaft and dashers are removed from the drum without diiliculty. The arbor g is held in place, when the churn is in operation, by the latch which drops into nvgroove in the arbor, and which is held in that position by the button It, as seen in figs. 1 and 3. L is a discharge tube.

Having thus described my invention, what I claim as new, and desire toesccure by Letters Patent, is-

l. The angles in the cylindrical portion of the churn', marked a', substantially as described.

2. The dasher E, forming :tn-oblique longitudinal section of u cylinder, attached to the arms as shown, and operating substantially as and for thc purposes described.

3. In combination with the dushers. E,l I claim'thc Scrapers b, attached to the arm D, substantially as shown A; H. BROWN.

Witnesses:

D. M. SMITH, F. J.KN1Gnr. 

